Realised in 1939 that pressure cookers could help him perfect his quick-frying chicken, which was covered with a blend of 11 herbs and spices that he kept to himself.
Sanders was an aggressive marketer who painted advertising signs on structures miles away from his petrol station turned restaurant.
The inclusion of white pepper is rare, and the flavour profile stated in the recipe does resemble the flavours of KFC's renowned chicken, even though we can't be certain it's the authentic recipe.
Gizzards, a muscle in a chicken's digestive tract that contains all the dirt they take up when they peck on the ground, are not for the faint of heart.
There is no longer a Double Down sandwich on the KFC menu, which had bacon, sliced cheese, and the Colonel's Special Sauce between two fried chicken fillets.
The name change, which took place in 1991, was a part of a branding effort to try to make the company sound healthier by dropping the word "fried."